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Button and Stud.

No. 241,722. Patented May 17,1881.

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UNITED STATES PATENT OFFICE.

CHARLES ROBINSON, OE TORONTO, ONTARIO, CANADA.

BUTTON AND STUD.

SPECIFICATION forming part of Letters Patent No. 241,722, dated May 17,1881.

Application filed May 31, 1880. (Model.)

, To all whom it may concern Be it known that 1, CHARLES ROBINSON, ofthe city of Toronto, in the county of York, in the Prdvince of Ontario,Canada, jeweler, have invented certain new and useful Improvements inShirt Studs and Buttons, of which the following is a specification.

This invention relates more particularly to an improved fastening forshirt and other studs and buttons; and it consists in the combination,with a fixed prong, which extends first downwardly and then outwardlyfrom the center of the bottom of the stud, of a similarlyshaped prong,which is movable'around the other prong for the purpose of fastening thestud to and detaching it rom the shirt or other garment.

Referring to the accompanying drawings, Figures 1 and 2 are perspectiveviews of a stud embodying my improvements. a section, and Figs. 4 and 5bottom plans of the same.

A is the stud, to the. under side of which is attached a fixed prong, B.This prong extends downwardly and then outwardly from the center of thestud, and on it is mounted the movable prong B, of substantially thesame shape.

The prong B is provided with a socket or sleeve, 1), which is fitted onthe upright portion of the stationary prong and retained in position bya shoulder, b.

, Both prongs are of substantially the same shape, and when placed inthe position shown in Figs. 1, 3, and 4. form a retaining crossbar,which effectually holds the stud in place. In this position the movableprong is held, by means of the spring-arm B and the cam-projection (J,from displacement, while to prevent the prong being turned too far, astop-block, D, is provided, against which the armB bears.

Figs. 2 and 5 show the position of the pron gs when fitting the studinto and detaching it from place. Here the prongs are brought closetogether, forming but one bar, which can readily be passed into and outof a small opening in the shirt or other garment; and,if desired,

. the ends of the prongs can be pointed and be made to effect their ownentrance by pressure.

The fixed prong B and the movable prong B, provided with the spring-armB made in Fig.3is

viz., it retains the sleeve 11 on the upright portion of the fixed wireB and limits the revolution of the movable wire prong B in one directionby acting as a stop, the movement of the movable wire prong in theopposite direction being limited bythe cam-projection O and stop D.

I am aware that Letters Patent for a button-fastening have been grantedL. Goodwin, dated June 29, 1858, No. 20,707, and I therefore lay noclaim to such invention, which differs from my construction in severalimportant particulars, among which the following may be ennmerated,viz:The prongs of Goodwin are not formed of wire; nor are the movable prongand its revolving arm made in one piece, nor provided with a sleevesecured to the movable prong and adapted to rotate on the fixed prong;nor is a shoulder employed by Goodwin retaining the sleeve in place, andalso acting as a stop to limit the movement in one direction of themovable prong.

My construction is different, simpler, and cheaper than the inventiondisclaimed, and the parts more readily put together.

I claim as new and desire to secure by Letters Patent The combination,with the stud-head A, having the projections O D on its lower face, ofthe fixed angular wire prong B, provided with the shoulder and stop I),and movable angular wire prong B, provided with the wire springarms Bformed therewith, and sleeve 1), secured to the movable arm and fittingaround the upright part of the stationary wire prong, substantially asdescribed, and for the purpose set forth.

O. ROBINSON.

Witnesses:

S. W. DOWNEY, GEORGE A. AIRD.

